Well I just started our own planet for the Humanitarian Free and Open Source Software Class (HFOSS). All students are required to create and manage a blog during the duration (and hopefully following) the class. Their blogs should talk about their projects, homeworks, and experiences in the open source community.
Please feel free to check it out at http://foss.rit.edu/planet/hfoss/ (Recursion for anyone reading this on the planet? :p )